..We conclude that CL may improve airway patency and ventilation, whereas JT with or without CPAP was the most effective maneuver to overcome airway obstruction in children with adenoidal hyperplasia...

Insect hygroreceptor responses to continuous changes in humidity and air pressure

..Accurately controlled, homogeneous mechanical input was delivered by modulating air pressure. Both the moist and dry cells responded not only to changes in air pressure but also in the opposite direction, ..

The purpose of this study was to investigate the effects of 6-h exposure to low relative humidity (RH) and low air pressure in a simulated air cabin environment on body fluid loss (BFL) and blood viscosity...

Comparison of the effects of 40% oxygen and two atmospheric absolute air pressure conditions on stress-induced premature senescence of normal human diploid fibroblasts

b>Air pressure pulsation solid state fermentation (APP-SSF) was applied to produce feruloyl esterase (FAE) by Aspergillus niger. With the optimization of some variables by orthogonal design, the optimal condition obtained was 0...

Loss of air pressure resistance leads to a high rate (25.7%) of inaccurate needle-tip placement in the posterior soft tissues of the back during lumbar epidural steroid administration employing a 20-gauge Tuohy needle...

E Fiona BaileyDepartment of Physiology, College of Medicine, The University of Arizona, Tucson 85721 0093, USAJ Physiol 548:563-8. 2003

..05). In conclusion, both co-activation and independent protrudor muscle activation increase airway stiffness. However, their effects on airway size are complex and depend on the condition of the airway at the time of activation...

..We conclude that elevated airflow-related shear stress on the epithelial cell layer can occur during heterogeneous constriction and conjecture that this may constitute a mechanism contributing to ventilator-induced lung injury...

Measurement of pulsatile tidal volume, pressure amplitude, and gas flow during high-frequency percussive ventilation, with and without partial cuff deflation

..Hypoxemia is considered to be the most important challenge during one-lung ventilation. Recent studies, however, have shown that one-lung ventilation can involve some lung damage and can therefore be per se a cause of hypoxemia...

..Further, we speculate that this compensatory response is lacking in children with OSAS, most likely due to either habituation to chronic respiratory abnormalities during sleep or to mechanical damage to the upper airway...

..Infants appear to have a different pattern of upper airway activation than older children. We speculate that the pharyngeal airway responses present in normal children are a compensatory response for a relatively narrow upper airway...

..Another possible confounding factor is the volume shift, primarily blood, out of the chest wall when the intrathoracic pressures rise. We set out to quantify the volume shift and investigate its mechanisms...

Safety of pressure-volume curve measurement in acute lung injury and ARDS using a syringe technique

..The use of 100% oxygen during induction of anesthesia may produce atelectasis. The authors investigated how different oxygen concentrations affect the formation of atelectasis and the fall in arterial oxygen saturation during apnea...

..005). We conclude that, in this model of ALI, PSV improves gas exchange because of a reduction of .V(A)/.Q inequality. However, improvements in .V(A)/.Q distribution may be more effective with CMV than with PSV...

The mechanics of the middle-ear at static air pressures: the role of the ossicular joints, the function of the middle-ear muscles and the behaviour of stapedial prostheses

In an experimental study, the mechanical behaviour of the ossicle-chain during changes of the static air pressure was analyzed microscopically and with a radiographic magnification technique in temporal bone preparations...

[Future direction of medical care system for patients with infectious disease and the new infectious diseases control law in Japan--centering around a category 1 hospital]

..a category 1 hospital, (2) whether strict isolation with precautions against airborne spread including negative air pressure with anterior-room should be required, (3) plague is not a dangerous disease and the patient with plague is not ..

Preparation of codeine-resinate and chlorpheniramine-resinate sustained-release suspension and its pharmacokinetic evaluation in beagle dogs

..The aim of this study is to investigate the effect of middle ear fluid and pressure on tympanic membrane mobility by using laser Doppler interferometry and to compare these results with tympanometry...

..The relevance of climatic events as causative factors for cholera epidemics is well known. However, examinations of the involvement of climatic factors in intracontinental disease distribution are still absent...

..of positive scans was compared to environmental factors such as temperature, humidity, vapour pressure, air pressure and rainfall. Multiple linear regression was used to establish the significance of these relations...

..To investigate the present situation of general intensive care unit (ICU) in second grade hospitals, and to establish intensive care network for the Department of Public Health of Guangdong province in Guangdong province...

..function of the ossicular chain must rigorously be separated from its behaviour at changes of static, ambient air pressure. The middle ear, working as a sensitive pressure receptor also reacts to these pressure changes with ..

Effect of oxygen gradients on the activity and microbial community structure of a nitrifying, membrane-aerated biofilm

..Nitrifying MABs were grown on a hollow-fiber membrane exposed to 3 mg N/L ammonium. The MAB intra-membrane air pressure was varied to achieve different DO concentrations at the biofilm base, and the bulk liquid was anoxic or with 2 ..

Influence of meteorological factors and air pollution on the outbreak of severe acute respiratory syndrome

..The spray application of chilled inoculum at the rate of 1.1 ml/plant and at an air pressure of 4.1 bar resulted in systemic infection nearly to a 100% of the tobacco (Nicotiana tabacum) plants inoculated...

A population-based study of the associations of stroke occurrence with weather parameters in Siberia, Russia (1982-92)

..Outbreaks of tuberculosis (TB) in hospitals have occurred when the Centers for Disease Control and Prevention (CDC) guideline recommendations for preventing the transmission of Mycobacterium tuberculosis were not fully implemented...

Use of a portable forced air system to convert existing hospital space into a mass casualty isolation area

..This project was conducted to determine whether negative-pressure isolation for multiple patients can be achieved quickly and effectively using general hospital space not previously dedicated to respiratory isolation...

..It was also necessary to drive a constant liquid flow toward the MS by applying air pressure to the inlet capillary during electrophoresis to maintain a conductive liquid junction between the capillary ..

Weather and the transmission of bacillary dysentery in Jinan, northern China: a time-series analysis

Ying ZhangDiscipline of Public Health, University of Adelaide, Adelaide, South AustraliaPublic Health Rep 123:61-6. 2008

....

Comparison of three techniques to measure unsaturated-zone air permeability at Picatinny Arsenal, NJ

The Eustachian (or auditory) tube is of central importance for the regulation of ambient air pressure changes within the middle ear spaces. Dysfunction of the Eustachian tube usually leads to chronic inflammatory changes of the middle ear...

Research Grants62

..Other indicators including heat waves and cold spells, the full spectrum of temperature, humidity, air pressure and wind as well as a composite weather index using the Spatial Synoptic Classification system will also be ..

..includes the redesign and construction of the compression device and developing a pneumatic system to use lower air pressure for operating the device;perform ergonomics and safety analysis of the device operation;and acquiring pilot ..

..The most effective treatment for OSA prevents the upper airway collapse during sleep by increasing the air pressure by a device called nasal-CPAP; however it is usually important and sometimes essential to be able to monitor ..

..of separation between "clean" and "dirty" traffic flows, inadequate material storage and segregation, lack of air pressure control to individual animal rooms and inability to control air temperature in individual cubicles, and ..

..approach is in the use of MEMS technology to develop robust and low-cost microvalves which are used to modulate air pressure applied to an inflatable flexible polymer surface in order to raise and lower individual tactile dots...

..speech production, (ii) the limits of the respiratory system to respond to sudden venting of intraoral air pressure during production of bilabial stop consonants, and (iii) the possible role of respiratory and laryngeal ..

..and that lung PAR1 and PAR2 activation peptidesincrease lung vascular permeability in TRPV4+/+ mice ventilated with high airway pressures but not in TRPV4-/- mice, or either genotype ventilated with low airway pressures ..

..In this project an earphone is being developed that can be used in both automated and manual testing and will significantly increase the efficiency, accuracy, and accessibility. [unreadable] [unreadable] [unreadable]..

..This research and comprehensive career development plan will prepare me to become an independent investigator in the mechanisms of alveolar epithelial injury and ventilator-associated lung injury. ..

..In addition, at the more basic level, this research is devoted to a fundamental biological dilemma of the lung, namely how the blood-gas barrier combines extreme thinness with immense strength. [unreadable] [unreadable]..